You need an artic blast once in a while just to keep you on your toes.
It is REALLY cold in my area right now. Thermometer reads right at 0, and the wind is shaking the house. Wind chills are hitting -20 and supposed to get worse between now and midnight. My EFM is running pretty hard, but it is "holding the line" so far.
Edit: Wind is supposed to die down overnight, -17 expected in the morning.